Keepalived 安裝

1、首先確保一些核心參數配置正確

修改 /etc/sysctl.conf的以下參數：

net.ipv4.ip_forward=1

net.ipv4.ip_nonlocal_bind = 1
net.ipv4.conf.lo.arp_ignore = 1
net.ipv4.conf.lo.arp_announce = 2
net.ipv4.conf.all.arp_ignore = 1
net.ipv4.conf.all.arp_announce = 2

 sysctl -p /etc/sysctl.conf

cat /proc/sys/net/ipv4/ip_forward

cat /proc/sys/net/ipv4/ip_nonlocal_bind

cat /proc/sys/net/ipv4/conf/lo/arp_ignore
cat /proc/sys/net/ipv4/conf/lo/arp_announce
cat /proc/sys/net/ipv4/conf/all/arp_ignore
cat /proc/sys/net/ipv4/conf/all/arp_announce

2、在主節點 修改keepalived.conf

global_defs {
notification_email{
andy_hugb@hotmail.com
}
notification_email_from andy_hugb@163.com
smtp_server mail.163.com
smtp_connect_timeout 30
router_id LVS_DEVEL
}

vrrp_instance VI_1 {
state MASTER
interface ens33
virtual_router_id 51
priority 100
advert_int 1
mcast_src_ip 192.168.222.132
authentication {
auth_type PASS
auth_pass 8888
}
virtual_ipaddress {
192.168.222.134/24 brd 192.168.222.255 dev ens33 label ens33:vip
}
}

3、在備節點修改keepalived.conf

global_defs {
notification_email{
andy_hugb@hotmail.com
}
notification_email_from andy_hugb@163.com
smtp_server mail.163.com
smtp_connect_timeout 30
router_id LVS_DEVEL
}

vrrp_instance VI_1 { state BACKUP interface ens33 virtual_router_id 51 priority 100 advert_int 1 mcast_src_ip 192.168.222.133 authentication { auth_type PASS auth_pass 8888 } virtual_ipaddress { 192.168.222.134/24 brd 192.168.222.255 dev ens33 label ens33:vip }}